How useful are Service Contracts for qPCR machines?

"Extendend warranty! How can I lose??" (Homer Simpson).
We pay for annual service contracts for two machines: 7300 Real Time PCR System and StepOnePlus Real-Time PCR System for more than 7000 per year. Can these things actually break?

It is hard to tell. I know it is expensive. It is like health or auto insurance which you may use once a year or never use it. As an alternative, there are 3rd party service providers and they cover many types of equipment at lower price.